<template>
    <a class="back-top-btn back-top-btn-bg" href="#" hidefocus="true">回到顶部</a>
</template>
<script setup></script>
<style lang="scss" scoped>
    .back-top-btn{
        display: block;
        position: fixed;
        text-indent: -9999px;
        left: 50%;
        margin-left: 500px;
        bottom: 160px;
        width: 49px;
        height: 44px;
    }

    .back-top-btn-bg{
        background-position: -265px -47px;
    }
</style>